﻿function Utility()
{
    this.moveCenter = function(e, top)
    {
        var height = $(document).height();
        var width = $(document).width();
        
        e.css("top",top);
        e.css("left", (width-e.width())/2);
            
    }
    
    this.maxmize = function(e)
    {
        e.css("height", $(document).height());
        e.css("width", $(document).width());
    }
}



// --------------json codes--------------
if (!Object.prototype.toJSONString) {
    Array.prototype.toJSONString = function (w) {
        var a = [],
            i,
            l = this.length,
            v;
        for (i = 0; i < l; i += 1) {
            v = this[i];
            switch (typeof v) {
            case 'object':
                if (v && typeof v.toJSONString === 'function') {
                    a.push(v.toJSONString(w));
                } else {
                    a.push('null');
                }
                break;

            case 'string':
            case 'number':
            case 'boolean':
                a.push(v.toJSONString());
                break;
            default:
                a.push('null');
            }
        }
        return '[' + a.join(',') + ']';
    };

    Boolean.prototype.toJSONString = function () {
        return String(this);
    };

    Date.prototype.toJSONString = function () {

        function f(n) {
            return n < 10 ? '0' + n : n;
        }

        return '"' + this.getUTCFullYear()   + '-' +
                   f(this.getUTCMonth() + 1) + '-' +
                   f(this.getUTCDate())      + 'T' +
                   f(this.getUTCHours())     + ':' +
                   f(this.getUTCMinutes())   + ':' +
                   f(this.getUTCSeconds())   + 'Z"';
    };


    Number.prototype.toJSONString = function () {
        return isFinite(this) ? String(this) : 'null';
    };

    Object.prototype.toJSONString = function (w) {
        var a = [],
            k,
            i,
            v;

        if (w) {
            for (i = 0; i < w.length; i += 1) {
                k = w[i];
                if (typeof k === 'string') {
                    v = this[k];
                    switch (typeof v) {
                    case 'object':

                        if (v) {
                            if (typeof v.toJSONString === 'function') {
                                a.push(k.toJSONString() + ':' +
                                       v.toJSONString(w));
                            }
                        } else {
                            a.push(k.toJSONString() + ':null');
                        }
                        break;

                    case 'string':
                    case 'number':
                    case 'boolean':
                        a.push(k.toJSONString() + ':' + v.toJSONString());
                    }
                }
            }
        } else {

            for (k in this) {
                if (typeof k === 'string' &&
                        Object.prototype.hasOwnProperty.apply(this, [k])) {
                    v = this[k];
                    switch (typeof v) {
                    case 'object':

                        if (v) {
                            if (typeof v.toJSONString === 'function') {
                                a.push(k.toJSONString() + ':' +
                                       v.toJSONString());
                            }
                        } else {
                            a.push(k.toJSONString() + ':null');
                        }
                        break;

                    case 'string':
                    case 'number':
                    case 'boolean':
                        a.push(k.toJSONString() + ':' + v.toJSONString());
                    }
                }
            }
        }
        return '{' + a.join(',') + '}';
    };


    (function (s) {
        var m = {
            '\b': '\\b',
            '\t': '\\t',
            '\n': '\\n',
            '\f': '\\f',
            '\r': '\\r',
            '"' : '\\"',
            '\\': '\\\\'
        };


        s.parseJSON = function (filter) {
            var j;

            function walk(k, v) {
                var i, n;
                if (v && typeof v === 'object') {
                    for (i in v) {
                        if (Object.prototype.hasOwnProperty.apply(v, [i])) {
                            n = walk(i, v[i]);
                            if (n !== undefined) {
                                v[i] = n;
                            }
                        }
                    }
                }
                return filter(k, v);
            }

            if (/^[\],:{}\s]*$/.test(this.replace(/\\./g, '@').
                    replace(/"[^"\\\n\r]*"|true|false|null|-?\d+(?:\.\d*)?(:?[eE][+\-]?\d+)?/g, ']').
                    replace(/(?:^|:|,)(?:\s*\[)+/g, ''))) {

                j = eval('(' + this + ')');

                return typeof filter === 'function' ? walk('', j) : j;
            }

            throw new SyntaxError('parseJSON');
        };


        s.toJSONString = function () {

            if (/["\\\x00-\x1f]/.test(this)) {
                return '"' + this.replace(/[\x00-\x1f\\"]/g, function (a) {
                    var c = m[a];
                    if (c) {
                        return c;
                    }
                    c = a.charCodeAt();
                    return '\\u00' + Math.floor(c / 16).toString(16) +
                                               (c % 16).toString(16);
                }) + '"';
            }
            return '"' + this + '"';
        };
    })(String.prototype);
}
//--------------------------------------